edu.indiana.iucbrf.maintenance
Class NullMaintenance

java.lang.Object
  edu.indiana.iucbrf.maintenance.Maintenance
      edu.indiana.iucbrf.maintenance.NullMaintenance

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

RealtorMaintenance

public class NullMaintenance
extends Maintenance

This class implements a simple maintenance procedure that never removes cases, and never adds them. It may be especially useful in testing a system when the case base should not be changed over the course of the testing.

See Also:

Serialized Form

Field Summary

Fields inherited from class edu.indiana.iucbrf.maintenance.Maintenance

checkRemoveFrequency

Constructor Summary

NullMaintenance()
Creates new NullMaintenance

Method Summary

void	removeUnneededCases(CaseBase CB, PerformanceMonitor monitor) This method overrides the super version to do nothing.
boolean	shouldAddCase(Case currentCase, SolutionQuality quality, RetrievalResults retrieved, CaseBase CB, PerformanceMonitor monitor) This method always returns false.
boolean	shouldRemoveCase(Case currentCase, CaseBase CB, PerformanceMonitor monitor) This method always returns false.

Methods inherited from class edu.indiana.iucbrf.maintenance.Maintenance

getCheckRemoveFrequency, setCheckRemoveFrequency

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NullMaintenance

public NullMaintenance()

Creates new NullMaintenance

Method Detail

removeUnneededCases

public void removeUnneededCases(CaseBase CB,
                                PerformanceMonitor monitor)

This method overrides the super version to do nothing. No cases are ever removed.

Overrides:

removeUnneededCases in class Maintenance

Parameters:

CB - The case base which is scheduled for maintenance.

shouldRemoveCase

public boolean shouldRemoveCase(Case currentCase,
                                CaseBase CB,
                                PerformanceMonitor monitor)

This method always returns false. No cases should ever be removed.

Specified by:

shouldRemoveCase in class Maintenance

shouldAddCase

public boolean shouldAddCase(Case currentCase,
                             SolutionQuality quality,
                             RetrievalResults retrieved,
                             CaseBase CB,
                             PerformanceMonitor monitor)

This method always returns false. No cases should ever be added.

Specified by:

shouldAddCase in class Maintenance